Battery charger



FIG. 1 is a perspective view of a battery charger showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a side view of the opposite side of FIG. 4;

FIG. 6 is a front view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a perspective view of FIG. 1 showing unclaimed features.

The broken lines shown are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

I claim the ornamental design for a battery charger, as shown and described. 